Gliding green light seen over Fairfield, CA sky on 5/6/10, 23:23...turned yellow as it continued its course out of sight.

I was sitting in my car waiting for a friend curbside outside a corner house.

I witnessed an aircraft gliding across the sky NW to SE in Fairfield, CA.

Aircraft caught my full attention when all I noticed was a green light that glowed from it, nothing blinking as is the norm for flying planes.

The aircraft continued along it's path and as it passed overhead, the color of the glowing light changed to yellow and stayed that color as it continued along its course and eventually out of sight.

This area is near a military base and several other aircraft (actual planes) can be seen in the distance with their blinking lights. This aircraft was unlike the others as it appeared to be a gliding light, not once blinking as the others in the distant sky did.